Music production. You start with pirated FL Studio and sone freeware plugins and the next thing you know is you're planing your hone studio with room treatment, expensive monitors, an expensive interface, aonther evrn more expensive interface, that one vintage compressor you absolutely need, a tape machine, and then you want I synthesizer, just a small, versaitle one, and next thing you know is you're buying the second euro rack for your mod synth because there wasn't enough space in the first one, because you need that one filter, and since you got lots of free slots now, why not buy some more fx. Fx can't hurt, right? And maybe one oscillator, you always wanted a fifth one...